DE69127039D1 - Verfahren zur Abtrennung von 2,7-Dimethylnaphthalin unter Druck - Google Patents

Verfahren zur Abtrennung von 2,7-Dimethylnaphthalin unter Druck

Info

Publication number
DE69127039D1
DE69127039D1 DE69127039T DE69127039T DE69127039D1 DE 69127039 D1 DE69127039 D1 DE 69127039D1 DE 69127039 T DE69127039 T DE 69127039T DE 69127039 T DE69127039 T DE 69127039T DE 69127039 D1 DE69127039 D1 DE 69127039D1
Authority
DE
Germany
Prior art keywords
separation
under pressure
dimethylnaphthalene
dimethylnaphthalene under
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69127039T
Other languages
English (en)
Other versions
DE69127039T2 (de
Inventor
Kazumoto Nakamura
Shinji Aihara
Yutaka Mito
Masami Takao
Hitoshi Hatakeyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Showa Shell Sekiyu KK
Kobe Steel Ltd
Japan Petroleum Energy Center JPEC
Original Assignee
Showa Shell Sekiyu KK
Petroleum Energy Center PEC
Kobe Steel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Shell Sekiyu KK, Petroleum Energy Center PEC, Kobe Steel Ltd filed Critical Showa Shell Sekiyu KK
Publication of DE69127039D1 publication Critical patent/DE69127039D1/de
Application granted granted Critical
Publication of DE69127039T2 publication Critical patent/DE69127039T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
DE69127039T 1990-09-12 1991-09-10 Verfahren zur Abtrennung von 2,7-Dimethylnaphthalin unter Druck Expired - Fee Related DE69127039T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2239984A JP2766059B2 (ja) 1990-09-12 1990-09-12 ２，７―ジメチルナフタレンの分離方法

Publications (2)

Publication Number Publication Date
DE69127039D1 true DE69127039D1 (de) 1997-09-04
DE69127039T2 DE69127039T2 (de) 1997-11-20

Family

ID=17052748

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127039T Expired - Fee Related DE69127039T2 (de) 1990-09-12 1991-09-10 Verfahren zur Abtrennung von 2,7-Dimethylnaphthalin unter Druck

Country Status (4)

Country Link
US (1) US5220098A (de)
EP (1) EP0475836B1 (de)
JP (1) JP2766059B2 (de)
DE (1) DE69127039T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5510515A (en) * 1993-09-21 1996-04-23 Showa Denko K.K. Process for purifying polar vinyl compound
US6057487A (en) * 1997-12-30 2000-05-02 Chevron Chemical Company Method for producing 2,6-DMN from mixed dimethylnaphthalenes by crystallization, adsorption and isomerization
US5955641A (en) * 1998-03-16 1999-09-21 Chevron Chemical Company Llc Method of making dimethylnaphthalenes
KR100621823B1 (ko) * 2004-07-21 2006-09-14 재단법인서울대학교산학협력재단 2,6-디알킬테트랄린의 제조 방법
CN101171215B (zh) * 2005-04-06 2011-09-21 三菱瓦斯化学株式会社 2，7-二甲基萘的精制方法
KR100754744B1 (ko) * 2006-05-01 2007-09-03 주식회사 효성 2,6-디메틸나프탈렌의 분리 및 정제방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202726A (en) * 1961-07-03 1965-08-24 Sun Oil Co Recovery of dimethylnaphthalenes
US3235615A (en) * 1961-10-10 1966-02-15 Sun Oil Co Preparation of naphthalene and certain dimethylnaphthalenes
US3590091A (en) * 1968-08-16 1971-06-29 Sun Oil Co Crystallization and purification of 2,6-dmn
US3594436A (en) * 1969-02-03 1971-07-20 Sun Oil Co Separation of 2,6-and 2,7-dmn eutectic via 2,6-dimethyltetrahydronaphthalene crystallization
US3668267A (en) * 1970-01-30 1972-06-06 Sun Oil Co Separation of 2,7-dimethylnaphthalene from 2,6-dimethylnaphthalene with molecular sieves
JPS5228792B1 (de) * 1971-01-27 1977-07-28
US3996031A (en) * 1972-10-19 1976-12-07 Sun Ventures, Inc. Fractionation of multicomponent dimethylnaphthelenes feeds by selective crystallization
JP2524800B2 (ja) * 1988-03-07 1996-08-14 昭和シェル石油株式会社 圧力晶析法によるナフタレンのメチル誘導体の分離方法
JPH02139001A (ja) * 1988-11-17 1990-05-29 Kobe Steel Ltd 圧力晶析方法

Also Published As

Publication number Publication date
EP0475836A3 (en) 1993-07-21
JPH04120027A (ja) 1992-04-21
EP0475836B1 (de) 1997-07-30
EP0475836A2 (de) 1992-03-18
DE69127039T2 (de) 1997-11-20
US5220098A (en) 1993-06-15
JP2766059B2 (ja) 1998-06-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee